Scanner and Relay in Mesh

RE: Scanner and Relay in Mesh

Joakim Jakobsen — Thu, 27 Apr 2023 22:34:09 GMT

Thanks.

[quote user="akif"]We wanted to use mesh LPN but we have concern about the friend node can be resource hungry as its got to cache all the LPN nodes connected to it.[/quote]

As you are thinking of using beacons, I guess there wouldn't be much communication to the LPN's if you choose to change from beacon to LPN. Right?

So caching messages to the LPN shouldn't be much of an issue.

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As for the relay feature; Most of our examples have relay enabled by default as it's a crucial part of BLE Mesh.

I'll do some research on the best way to read data from a BLE beacon and relay to the Mesh. I haven't really tried this before.

Br,
Joakim

RE: Scanner and Relay in Mesh

akif — Mon, 24 Apr 2023 16:09:21 GMT

Yes, in the some applications the beacons and relays will be spreaded to about 300-600 sqm. We want to increase the range of beacons and carry the data to the proxy node.

We have some BLE beacons in a pilot area, but we can change to the mesh, if it is more useful. We wanted to use mesh LPN but we have concern about the friend node can be resource hungry as its got to cache all the LPN nodes connected to it. Does it a case if we have 10 bytes of user data only?

Please check how I can implement, I think the main problem is switching between beacon scanner and mesh relay feature. It is not only combining two applications, there should be a clever logic. I guess?

Alternatively, I am working on chat model . It is good for relay and proxy node, if I can modify chat model for LPN node, I think, it should work as expected. As I said earlier only concern about the cache.
I don't know how the cache work but as I think, the message will send from relay as soon as the next relay or proxy node is available, and it will be deleted. Does it work this way?

RE: Scanner and Relay in Mesh

Joakim Jakobsen — Mon, 24 Apr 2023 13:24:52 GMT

Thanks.

Do you want to use Mesh relays to increase the range because the beacons are dispersed across a larger area?

Just trying to get a clear picture of what your network looks like and what your use case is. If you really don't need to use Mesh and you don't already have a Mesh network implemented in your solution, I think it would be easier for you to avoid mixing the two.

It's possible to relay messages using a standard BLE device as well.

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However, it should be possible combining two examples. I'll check if we have any custom samples that could serve as a good starting point for you.

Br,
Joakim

RE: Scanner and Relay in Mesh

akif — Mon, 24 Apr 2023 11:21:01 GMT

Hi Jaakim,

There are about 50-60 BLE beacons, they will broadcast small data - 10 bytes - every 1 minutes.
Several mesh relays will capture data from those beacons and they will send the data to the proxy node immediately.

Is it clear?

RE: Scanner and Relay in Mesh

Joakim Jakobsen — Sun, 23 Apr 2023 19:55:28 GMT

Hi.

Could you explain a little closer what you setup will look like?

You will have BLE beacons that will broadcast some data every 1 minute. This should be captured by a proxy node and relayed through your Mesh network?

Br,
Joakim